LspJournalCli: "all-the-things-indexing" journal fails on a clean tree (missing publishDiagnostics at step 21)

[anderson-joyle]

Summary

The LSP journal test all-the-things-indexing (run via LspJournalCli) does not pass on a clean checkout of main. It was discovered incidentally while validating an unrelated change, and reproduces with no local modifications.

Environment

• OS: Windows (Windows_NT)
• .NET SDK: 10.0.301
• Branch: main (clean working tree)

Repro

# clean checkout of main, no local changes
dotnet run --project src/LanguageServers/PowerPlatformLS/Tools/LspJournalCli -c Debug -- all-the-things-indexing

Observed

Step [21/69] open fails with a missing notification:

[21/69] open... FAIL
  missing_notification: notifications
    expected: textDocument/publishDiagnostics:{
  "diagnostics": [
    {
      "message": "Document was not compiled under the curr...

The server does not emit the expected textDocument/publishDiagnostics notification (with the "Document was not compiled under the current ..." diagnostic) that the journal recorded for that step.

Secondary observation (likely related)

Running the full suite (-- --all) aborts with an unhandled exception instead of a clean per-test report:

Unhandled exception: System.InvalidOperationException: Text hash mismatch for 'topics/Greeting.mcs.yml'.
  at ...DocumentTextPolicy.ExpandTextNode(...)
  at ...RunCommand.RunJournalAsync(...)
  at ...RunCommand.RunAllAsync(...)

During a run the journal CLI rewrites committed fixture files under Tools/LspJournalCli/TestAssets/fixtures/ (e.g. line-ending normalization: git status shows dozens of modified *.mcs.yml after a run). On Windows this appears to interact with CRLF↔LF normalization so that a later Text hash mismatch check throws and aborts the remaining journals. After a run, git checkout -- Tools/LspJournalCli/TestAssets/ is needed to restore the fixtures.

Impact

• The journal suite cannot complete green on a clean Windows checkout.
• A run leaves the working tree dirty (mutated fixtures), which is easy to commit accidentally.

Notes

These observations are independent of any feature work; they reproduce with zero local changes. Filing for maintainer triage — possibly a stale/platform-specific journal baseline for all-the-things-indexing, plus a fixture-mutation / line-ending sensitivity in LspJournalCli.